Trolley-wire crossing.



H. L. GRISWOLD & T. KERIN.

TROLLEY WIRE GROSSIN G.

APPLICATION FILED JUNE 26, 1909.

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HOWARD L. eniswom) Ann THOMAS KERIN, or OAKLAND, CALIFORNIA.

TROLLEY-WIR-E CROSSING.

Application filed June 26, 1909.

To all whom it may concern:

Be it known that we, HOWARD L. GRIS- won!) and THOMAS KERIN, citizens of the United States, residing at Oakland, in the county of Alameda and State of California, have invented certain new and useful Improvements in Trolleyire Crossings, of which the following is a specification, reference being had therein to theaccompanying drawing.

This invention relates to trolley wire crossings, and the principal object of the same is to provide a crossing which will permit the use of two kinds of contacts, such as one for the flanged trolley wheel on one branch of a road, and a roller or sliding contact on the other branch of the road.

In carrying out the object of the invention generally stated above it is contemplated providing a crossing the main member of which is provided with end clamps for holding one wire, said main member forming the support for the other crossing member, said last mentioned member being supported above the wire carried by the main member and provided with a plurality of oppositely disposed clamping lugs for holding a wire therein.

In the practical application of the invention as generally stated above it will, of course, be understood that the essential fea tures thereof are necessarily susceptible of changes in details and structural arrangements, but one preferred and simple embodiment of the same is shown in the accom panying drawings, wherein Figure 1 is a to plan view of the improved crossing. Fig. 2 is an end elevation thereof showing one of the crossing members in side elevation. Fig. 3 is another end elevation showing the other crossing member in side elevation. Fig. 1 is a central vertical sectional view taken on the line 4-4, Fig. 1.

Referring to said drawings by numerals it will be observed that the improved trolley crossing is composed of a main member 1 which is provided with upstanding vertically arranged spaced apart sides 2 and a plate 3 the bottom of which is fiat and widened and arranged at right angles to said sides. Said bottom plate projects on opposite sides of said spaced apart sides and carries spaced apart plates 1 the ends of which meet said sides at the center of said plate. Said flat bottom plate carries a Specification of Letters Patent.

Patented Apr. 5, 1910.

Serial No. 504,572.

raised central upper surface 5 and its ends 6 are downwardly inclined. The top 7 of said raised central portion is flat. The spaced apart vertically arranged sides 5 taper downwardly from their center and at their intermediate portions are provided with ears 8, and at their ends they are also provided with ears 9. The ears 8 and 9 of said sides are provided with bolts 10 which pass through end ears 11 of a clamp 12. Said clamps are adapted for a snug fit between said spaced apart vertical sides 2 and are provided with rounded ends 13 and straight flat bottoms 14. The inner ends of said clamps are arranged above the beveled or inclined ends of said plate 3 so as to provide clearance between them and said plate for the trolley wire 15 which is held within said member 1 by said clamps. The clamps may be provided with a central elongated slot 16 to lighten the same. A second supporting member 17 is supported upon the raised flat top 5 of the plate 3, said member 17 being longitudinally grooved. The opposite sides of said groove are provided at their upper edge with oppositely disposed lugs 18 for holding the wire 19 in said groove. Preferably the member 17 tapers from its central portion to its ends. The intermediate portion of said member adjacent each end thereof is provided with openings 20 which lighten the same. The base thereof which rests upon the flat top 5 is provided with a clearance opening 21 for the trolley wire 15. Obviously the member 17 is arranged at right angles to the member 1.

To assemble the improved crossing, the end clamps of the member 1 are removed, and the wire 15 threaded therethrough and beneath the member 17. The inner ends of the clamps are then bolted to the sides of the member 1 and serve as pivots by means of which the clamps may be rocked down 'onto the wire 15 to clamp the same to the beveled or inclined ends of the plate 3, after which the outer ends of the clamps are bolted to the end ears of the member 1. The wire 19 is then forced into the grooved member 17 and is held there as shown in Fig. 2 with its upper surface projecting slightly above the top edge of the sides thereof by means of the lugs 18.

It will be seen from the foregoing that the improved crossing provides means whereby a flanged contact wheel may freely run over the member 17 and its supported wire 19, and a roller or sliding contact may run or slide over the straight flat bottom of the member 1, thus adapting the device for use in connection with railroad crossings wherein the two types of contacts are employed.

The entire crossing may be cast in one piece and preferably the grooved member 17 is provided with bolts 22 which pass through its sides and engage with the plates lcarried by the base plate 1 so as to reinforce said parts.

What we claim as our invention is l. A trolley crossing comprising a supporting plate provided with a flat bottom, side members carried by said plate, said side-members being spaced apart, wire clamps carried by the ends of said side members, a grooved wire supporting member projecting across said side members and at right angles thereto, said grooved member being supported by said plate and provided with a wire opening through its base, and means carried by the upper portion of said grooved member for supporting a wire above the wire carried by the said spaced apart sides.

2. A trolley crossing comprising a base plate having a fiat bottom, spaced apart side members carried by said plates, wire clamp ing means carried by said side members for holding a wire to said plate, holding plates also carried by said base plate and projecting at right-angles to said side members, a grooved wire holder supported by said base plate between said holding plates, said grooved wire holder being arranged at right angles to said side members, and wire holding clips carried by said grooved member.

3. A trolley crossing comprising a base plate provided with downwardly inclined ends and a raised central portion, spaced apart side members carried by said plate, means carried by said side members for clamping a wire to the inclined ends of said plate, a grooved wire holder carried by the raised central portion of said base plate and provided with a base opening for the passage of the wire clamped to the ends of said plate, and means for holding a wire to said groove.

4. A trolley crossing comprising a base plate having a flat bottom and a raised central portion provided with a flat top, spaced apart side members carried by said base plate for clamping a wire to said base plate, holding plates carried by said base plate and arranged at right angles to said side members, and a grooved wire holder supported by said raised central portion of the base plate and held between said holding plates, said holder being provided with a base opening for the passage of said wire carried by the spaced apart sides.

In testimony whereof we hereunto atlix our signatures in presence of two witnesses.

HOlVARD L. GRISWOLD. THOMAS KERIN.

.Vitnesses H. C. Sormononn, F. P. SCHROEDER. 

